253
FZUS51 KBOX 060504
CWFBOX
COASTAL WATERS FORECAST FOR MASSACHUSETTS AND RHODE ISLAND
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
103 AM EDT WED MAY 6 2026
COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT
TO 60 NM
ANZ200-061800-
103 AM EDT WED MAY 6 2026
SYNOPSIS FOR MASSACHUSETTS AND RHODE ISLAND COASTAL WATERS
NEARSHORE GALE FORCE SOUTHWEST WIND GUSTS WILL PERSIST INTO THIS
EVENING AHEAD OF A SLOW MOVING COLD FRONT. THIS COLD FRONT WILL
REMAIN WEST OF OUR REGION WED...UNTIL LOW PRES CROSSES OUR REGION
WED NIGHT. THIS DRAGS A COLD FRONT ACROSS OUR REGION BY EARLY THU AS
A SECONDARY WAVE OF LOW PRES TRACKS WELL TO OUR SOUTH. HIGH PRES
BUILDS OVER THE MID ATLC COAST FRIDAY. THIS WILL BE FOLLOWED
BY ANOTHER LOW PRES SYSTEM MOVING INTO THE REGION SAT-SAT NIGHT.
ANZ250-061800-
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK
NATIONAL MARINE SANCTUARY-
103 AM EDT WED MAY 6 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF TONIGHT
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT.
SEAS 4 TO 6 FT. WAVE DETAIL: SW 6 FT AT 6 SECONDS AND E 1 FOOT AT
10 SECONDS.
WED
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 4 TO
6 FT. WAVE DETAIL: SW 5 FT AT 6 SECONDS AND E 1 FOOT AT
10 SECONDS. PATCHY FOG IN THE AFTERNOON. A CHANCE OF SHOWERS IN
THE AFTERNOON WITH VSBY 1 TO 3 NM.
WED NIGHT
S WINDS 15 TO 20 KT, BECOMING SW AFTER MIDNIGHT.
GUSTS UP TO 30 KT. SEAS 3 TO 5 FT. WAVE DETAIL: SW 5 FT AT
6 SECONDS AND E 1 FOOT AT 10 SECONDS. PATCHY FOG. SHOWERS LIKELY.
VSBY 1 NM OR LESS.
THU
NW WINDS 5 TO 10 KT, BECOMING S IN THE AFTERNOON. SEAS
2 TO 4 FT. WAVE DETAIL: SE 3 FT AT 6 SECONDS AND W 2 FT AT
3 SECONDS. A CHANCE OF SHOWERS IN THE MORNING.
THU NIGHT
SW WINDS 5 TO 10 KT, BECOMING NW AFTER MIDNIGHT.
SEAS 2 TO 3 FT. WAVE DETAIL: W 2 FT AT 3 SECONDS AND SE 2 FT AT
6 SECONDS.
FRI AND FRI NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: SE 3 FT AT 10 SECONDS AND W 2 FT AT 3 SECONDS.
SAT AND SAT NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT.
SEAS 2 TO 4 FT. A CHANCE OF SHOWERS.
SUN
S WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
3 FT.
SUN NIGHT
S WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
2 TO 3 FT. SHOWERS LIKELY.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ251-061800-
MASSACHUSETTS BAY AND IPSWICH BAY-
103 AM EDT WED MAY 6 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING
REST OF TONIGHT
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT.
SEAS 3 TO 4 FT. WAVE DETAIL: S 4 FT AT 5 SECONDS AND E 1 FOOT AT
10 SECONDS.
WED
S WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO
4 FT. WAVE DETAIL: S 4 FT AT 5 SECONDS AND E 1 FOOT AT
10 SECONDS. A CHANCE OF SHOWERS IN THE AFTERNOON.
WED NIGHT
S WINDS 15 TO 20 KT, BECOMING W 10 TO 15 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: S 4 FT
AT 4 SECONDS AND E 1 FOOT AT 10 SECONDS. PATCHY FOG. SHOWERS
LIKELY. VSBY 1 TO 3 NM.
THU
NW WINDS 5 TO 10 KT, BECOMING SW IN THE AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: SE 2 FT AT 5 SECONDS AND W 1 FOOT AT
3 SECONDS.
THU NIGHT THROUGH FRI NIGHT
SW WINDS 5 TO 10 KT. SEAS AROUND
2 FT. WAVE DETAIL: E 2 FT AT 9 SECONDS AND W 1 FOOT AT 2 SECONDS.
SAT AND SAT NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT AT 4 SECONDS AND W 2 FT AT
3 SECONDS. A CHANCE OF SHOWERS.
SUN
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT.
SUN NIGHT
S WINDS 15 TO 20 KT. SEAS 2 TO 3 FT. SHOWERS LIKELY.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ231-061800-
CAPE COD BAY-
103 AM EDT WED MAY 6 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING
REST OF TONIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT.
SEAS 3 TO 5 FT. WAVE DETAIL: SW 3 FT AT 4 SECONDS AND E 1 FOOT AT
9 SECONDS.
WED
S WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO
4 FT. WAVE DETAIL: SW 3 FT AT 4 SECONDS AND E 1 FOOT AT
10 SECONDS. A CHANCE OF SHOWERS IN THE AFTERNOON.
WED NIGHT
S WINDS 15 TO 20 KT, BECOMING SW 10 TO 15 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: SW 3 FT
AT 4 SECONDS AND E 1 FOOT AT 10 SECONDS. PATCHY FOG. SHOWERS.
VSBY 1 TO 3 NM, DECREASING TO 1 NM OR LESS AFTER MIDNIGHT.
THU
NW WINDS 5 TO 10 KT, BECOMING NE IN THE AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: W 1 FOOT AT 3 SECONDS AND S 1 FOOT AT
4 SECONDS. PATCHY FOG IN THE MORNING. A CHANCE OF SHOWERS IN THE
MORNING WITH VSBY 1 TO 3 NM.
THU NIGHT
SW WINDS 5 TO 10 KT, BECOMING NW AFTER MIDNIGHT.
SEAS 1 FOOT OR LESS, THEN AROUND 2 FT AFTER MIDNIGHT. WAVE
DETAIL: W 1 FOOT AT 3 SECONDS AND SE 1 FOOT AT 3 SECONDS,
BECOMING W 1 FOOT AT 2 SECONDS AND SE 1 FOOT AT 8 SECONDS.
FRI AND FRI NIGHT
SW WINDS 5 TO 10 KT WITH GUSTS UP TO 20 KT.
SEAS AROUND 2 FT. WAVE DETAIL: SE 2 FT AT 7 SECONDS AND NW 1 FOOT
AT 3 SECONDS.
SAT AND SAT NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT. A CHANCE OF SHOWERS.
SUN
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT.
SUN NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
AROUND 2 FT. A CHANCE OF SHOWERS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ254-061800-
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA
OUT 20 NM-
103 AM EDT WED MAY 6 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY MORNING
REST OF TONIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT.
SEAS 5 TO 7 FT. WAVE DETAIL: SW 7 FT AT 6 SECONDS AND E 1 FOOT AT
10 SECONDS. PATCHY FOG. VSBY 1 TO 3 NM.
WED
S WINDS AROUND 20 KT WITH GUSTS UP TO 30 KT. SEAS 4 TO
6 FT. WAVE DETAIL: SW 6 FT AT 6 SECONDS AND E 1 FOOT AT
10 SECONDS. PATCHY FOG IN THE AFTERNOON WITH VSBY 1 NM OR LESS.
WED NIGHT
S WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS
4 TO 6 FT. WAVE DETAIL: SW 6 FT AT 5 SECONDS AND E 1 FOOT AT
10 SECONDS. PATCHY FOG. SHOWERS LIKELY. VSBY 1 NM OR LESS.
THU
W WINDS 10 TO 15 KT, DIMINISHING TO 5 TO 10 KT IN THE
AFTERNOON. SEAS 3 TO 5 FT. WAVE DETAIL: S 5 FT AT 7 SECONDS AND W
1 FOOT AT 4 SECONDS. PATCHY FOG IN THE MORNING. A CHANCE OF
SHOWERS IN THE MORNING WITH VSBY 1 NM OR LESS.
THU NIGHT
SW WINDS 5 TO 10 KT, BECOMING NW AFTER MIDNIGHT.
SEAS 2 TO 4 FT. WAVE DETAIL: S 4 FT AT 7 SECONDS AND E 2 FT AT
9 SECONDS.
FRI AND FRI NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 3 TO 4 FT. WAVE DETAIL: S 3 FT AT 7 SECONDS AND SE 3 FT AT
10 SECONDS.
SAT AND SAT NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 4 FT. A CHANCE OF SHOWERS.
SUN
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
4 FT.
SUN NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
3 TO 4 FT. A CHANCE OF SHOWERS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ255-061800-
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD
AND NANTUCKET-
103 AM EDT WED MAY 6 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON
REST OF TONIGHT
S WINDS 25 TO 30 KT. SEAS 6 TO 8 FT. WAVE
DETAIL: SW 8 FT AT 7 SECONDS AND E 1 FOOT AT 9 SECONDS. PATCHY
FOG. VSBY 1 TO 3 NM.
WED
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO
8 FT. WAVE DETAIL: SW 8 FT AT 8 SECONDS AND W 1 FOOT AT
5 SECONDS. PATCHY FOG IN THE AFTERNOON WITH VSBY 1 NM OR LESS.
WED NIGHT
S WINDS 20 TO 25 KT, BECOMING SW 15 TO 20 KT AFTER
MIDNIGHT. GUSTS UP TO 30 KT. SEAS 5 TO 7 FT. WAVE DETAIL: SW 7 FT
AT 7 SECONDS AND E 1 FOOT AT 10 SECONDS. PATCHY FOG. SHOWERS
LIKELY. VSBY 1 NM OR LESS, INCREASING TO 1 TO 3 NM AFTER
MIDNIGHT.
THU
W WINDS 10 TO 15 KT, DIMINISHING TO 5 TO 10 KT IN THE
AFTERNOON. SEAS 4 TO 6 FT. WAVE DETAIL: SW 6 FT AT 6 SECONDS AND
E 1 FOOT AT 10 SECONDS. SHOWERS LIKELY, MAINLY IN THE MORNING.
PATCHY FOG IN THE MORNING WITH VSBY 1 TO 3 NM.
THU NIGHT
W WINDS 5 TO 10 KT, BECOMING NW 10 TO 15 KT AFTER
MIDNIGHT. SEAS 3 TO 4 FT. WAVE DETAIL: S 4 FT AT 7 SECONDS AND NW
2 FT AT 3 SECONDS.
FRI AND FRI NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 3 TO 4 FT. WAVE DETAIL: S 4 FT AT 7 SECONDS AND W 3 FT AT
4 SECONDS.
SAT AND SAT NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 3 TO 4 FT. A CHANCE OF SHOWERS.
SUN
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
4 FT.
SUN NIGHT
S WINDS AROUND 15 KT WITH GUSTS UP TO 20 KT. SEAS
3 TO 4 FT. A CHANCE OF SHOWERS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ256-061800-
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT
TO 20 NM SOUTH OF BLOCK ISLAND-
103 AM EDT WED MAY 6 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON
REST OF TONIGHT
SW WINDS 25 TO 30 KT. SEAS 7 TO 9 FT. WAVE
DETAIL: S 9 FT AT 8 SECONDS AND W 1 FOOT AT 7 SECONDS.
WED
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 7 TO
8 FT. WAVE DETAIL: S 8 FT AT 8 SECONDS AND W 1 FOOT AT 7 SECONDS.
PATCHY FOG IN THE AFTERNOON. A CHANCE OF SHOWERS IN THE AFTERNOON
WITH VSBY 1 NM OR LESS.
WED NIGHT
S WINDS 20 TO 25 KT, BECOMING SW 15 TO 20 KT AFTER
MIDNIGHT. GUSTS UP TO 30 KT. SEAS 5 TO 7 FT. WAVE DETAIL: SW 7 FT
AT 7 SECONDS AND SE 1 FOOT AT 10 SECONDS. PATCHY FOG. SHOWERS
LIKELY. VSBY 1 NM OR LESS.
THU
W WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. WAVE DETAIL: S 6 FT
AT 7 SECONDS AND W 1 FOOT AT 7 SECONDS. PATCHY FOG IN THE
MORNING. A CHANCE OF SHOWERS IN THE MORNING WITH VSBY 1 TO 3 NM.
THU NIGHT
W WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: S
4 FT AT 7 SECONDS AND NW 2 FT AT 3 SECONDS.
FRI AND FRI NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 3 TO 4 FT. WAVE DETAIL: SW 4 FT AT 7 SECONDS AND W 3 FT AT
4 SECONDS.
SAT AND SAT NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT.
SEAS 3 TO 5 FT. A CHANCE OF SHOWERS.
SUN
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
4 FT.
SUN NIGHT
S WINDS 15 TO 20 KT. SEAS 3 TO 4 FT. SHOWERS LIKELY.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ232-061800-
NANTUCKET SOUND-
103 AM EDT WED MAY 6 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING
REST OF TONIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT.
SEAS 3 TO 5 FT. WAVE DETAIL: SW 4 FT AT 5 SECONDS AND E 1 FOOT AT
8 SECONDS. PATCHY FOG. VSBY 1 TO 3 NM.
WED
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO
5 FT. WAVE DETAIL: SW 4 FT AT 5 SECONDS AND E 1 FOOT AT
9 SECONDS. PATCHY FOG IN THE AFTERNOON. A CHANCE OF SHOWERS IN
THE AFTERNOON WITH VSBY 1 TO 3 NM.
WED NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
2 TO 4 FT. WAVE DETAIL: SW 4 FT AT 5 SECONDS AND E 1 FOOT AT
10 SECONDS. PATCHY FOG. SHOWERS. VSBY 1 TO 3 NM, DECREASING TO
1 NM OR LESS AFTER MIDNIGHT.
THU
NW WINDS 5 TO 10 KT, BECOMING SW IN THE AFTERNOON. SEAS
2 TO 4 FT. WAVE DETAIL: W 2 FT AT 4 SECONDS AND S 2 FT AT
7 SECONDS. A CHANCE OF SHOWERS. PATCHY FOG IN THE MORNING WITH
VSBY 1 TO 3 NM.
THU NIGHT
SW WINDS 5 TO 10 KT, BECOMING NW AFTER MIDNIGHT.
SEAS AROUND 2 FT. WAVE DETAIL: SW 1 FOOT AT 3 SECONDS AND S
1 FOOT AT 7 SECONDS.
FRI AND FRI NIGHT
SW WINDS 15 TO 20 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: W 2 FT AT 3 SECONDS AND S 1 FOOT AT 7 SECONDS.
SAT AND SAT NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT. A CHANCE OF SHOWERS.
SUN
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT.
SUN NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 3 FT. SHOWERS LIKELY.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ233-061800-
VINEYARD SOUND-
103 AM EDT WED MAY 6 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING
REST OF TONIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT.
SEAS 4 TO 6 FT. WAVE DETAIL: SW 6 FT AT 8 SECONDS AND SW 3 FT AT
5 SECONDS.
WED
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 4 TO
6 FT. WAVE DETAIL: SW 6 FT AT 8 SECONDS AND SW 2 FT AT 5 SECONDS.
PATCHY FOG IN THE AFTERNOON. A CHANCE OF SHOWERS IN THE AFTERNOON
WITH VSBY 1 TO 3 NM.
WED NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS
3 TO 5 FT. WAVE DETAIL: SW 5 FT AT 7 SECONDS AND SE 1 FOOT AT
13 SECONDS. PATCHY FOG. SHOWERS LIKELY. VSBY 1 TO 3 NM.
THU
NW WINDS 5 TO 10 KT, BECOMING SW IN THE AFTERNOON. SEAS
2 TO 4 FT. WAVE DETAIL: W 4 FT AT 6 SECONDS AND SE 1 FOOT AT
10 SECONDS. PATCHY FOG IN THE MORNING. A CHANCE OF SHOWERS IN THE
MORNING.
THU NIGHT
W WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW
3 FT AT 7 SECONDS AND W 2 FT AT 4 SECONDS.
FRI AND FRI NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 2 TO 4 FT. WAVE DETAIL: W 2 FT AT 4 SECONDS AND SW 2 FT AT
7 SECONDS.
SAT AND SAT NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT. A CHANCE OF SHOWERS.
SUN
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT.
SUN NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 3 FT. SHOWERS LIKELY.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ234-061800-
BUZZARDS BAY-
103 AM EDT WED MAY 6 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING
REST OF TONIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT.
SEAS 3 TO 5 FT. WAVE DETAIL: S 5 FT AT 7 SECONDS.
WED
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 3 TO
5 FT. WAVE DETAIL: SW 5 FT AT 7 SECONDS AND SW 3 FT AT 4 SECONDS.
PATCHY FOG IN THE AFTERNOON. A CHANCE OF SHOWERS IN THE AFTERNOON
WITH VSBY 1 TO 3 NM.
WED NIGHT
S WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT, BECOMING
SW 10 TO 15 KT WITH GUSTS UP TO 20 KT AFTER MIDNIGHT. SEAS 2 TO
4 FT. WAVE DETAIL: SW 4 FT AT 7 SECONDS AND SW 3 FT AT 4 SECONDS.
PATCHY FOG. SHOWERS LIKELY. VSBY 1 TO 3 NM.
THU
NW WINDS 5 TO 10 KT, BECOMING SW IN THE AFTERNOON. SEAS
2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 7 SECONDS AND SE 2 FT AT
10 SECONDS. PATCHY FOG IN THE MORNING. A CHANCE OF SHOWERS IN THE
MORNING WITH VSBY 1 TO 3 NM.
THU NIGHT
W WINDS AROUND 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
SW 2 FT AT 7 SECONDS AND SW 1 FOOT AT 4 SECONDS.
FRI AND FRI NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 2 TO 4 FT. WAVE DETAIL: SW 2 FT AT 4 SECONDS AND SW 1 FOOT
AT 7 SECONDS.
SAT AND SAT NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT.
SEAS 2 TO 4 FT. A CHANCE OF SHOWERS.
SUN
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT.
SUN NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
AROUND 2 FT. SHOWERS LIKELY.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ235-061800-
RHODE ISLAND SOUND-
103 AM EDT WED MAY 6 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING
REST OF TONIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT.
SEAS 5 TO 8 FT. WAVE DETAIL: S 8 FT AT 8 SECONDS AND W 2 FT AT
5 SECONDS.
WED
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 5 TO
7 FT. WAVE DETAIL: SW 7 FT AT 7 SECONDS AND SE 3 FT AT 8 SECONDS.
PATCHY FOG IN THE AFTERNOON. A CHANCE OF SHOWERS IN THE AFTERNOON
WITH VSBY 1 NM OR LESS.
WED NIGHT
S WINDS 20 TO 25 KT, BECOMING SW 15 TO 20 KT AFTER
MIDNIGHT. GUSTS UP TO 30 KT. SEAS 4 TO 6 FT. WAVE DETAIL: SW 6 FT
AT 7 SECONDS AND SE 2 FT AT 11 SECONDS. PATCHY FOG. SHOWERS
LIKELY IN THE EVENING. A CHANCE OF SHOWERS AFTER MIDNIGHT. VSBY
1 NM OR LESS.
THU
NW WINDS 5 TO 10 KT, BECOMING SW IN THE AFTERNOON. SEAS
3 TO 5 FT. WAVE DETAIL: SW 5 FT AT 7 SECONDS AND E 2 FT AT
9 SECONDS. A CHANCE OF SHOWERS IN THE MORNING.
THU NIGHT
W WINDS 10 TO 15 KT. SEAS 2 TO 4 FT. WAVE DETAIL: SW
4 FT AT 7 SECONDS AND SE 2 FT AT 9 SECONDS.
FRI AND FRI NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 2 TO 4 FT. WAVE DETAIL: S 4 FT AT 7 SECONDS AND W 3 FT AT
4 SECONDS.
SAT AND SAT NIGHT
SW WINDS 15 TO 20 KT, DIMINISHING TO 10 TO
15 KT. GUSTS UP TO 25 KT. SEAS 2 TO 4 FT. A CHANCE OF SHOWERS.
SUN
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS AROUND
3 FT.
SUN NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 3 FT. SHOWERS LIKELY.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ237-061800-
BLOCK ISLAND SOUND-
103 AM EDT WED MAY 6 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING
REST OF TONIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT.
SEAS 5 TO 7 FT. WAVE DETAIL: S 7 FT AT 8 SECONDS AND W 2 FT AT
5 SECONDS.
WED
S WINDS AROUND 20 KT WITH GUSTS UP TO 30 KT. SEAS 4 TO
6 FT. WAVE DETAIL: S 6 FT AT 8 SECONDS AND W 2 FT AT 5 SECONDS.
PATCHY FOG IN THE AFTERNOON. A CHANCE OF SHOWERS IN THE AFTERNOON
WITH VSBY 1 NM OR LESS.
WED NIGHT
S WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT, BECOMING
W 10 TO 15 KT WITH GUSTS UP TO 20 KT AFTER MIDNIGHT. SEAS 4 TO
6 FT. WAVE DETAIL: SW 6 FT AT 6 SECONDS AND SE 1 FOOT AT
9 SECONDS. PATCHY FOG. SHOWERS LIKELY IN THE EVENING. A CHANCE OF
SHOWERS AFTER MIDNIGHT. VSBY 1 NM OR LESS.
THU
NW WINDS 5 TO 10 KT, BECOMING W IN THE AFTERNOON. SEAS
3 TO 4 FT. WAVE DETAIL: S 4 FT AT 7 SECONDS AND W 1 FOOT AT
6 SECONDS. A CHANCE OF SHOWERS IN THE MORNING.
THU NIGHT
NW WINDS AROUND 10 KT. SEAS 2 TO 4 FT. WAVE DETAIL:
SW 4 FT AT 6 SECONDS AND E 1 FOOT AT 9 SECONDS.
FRI AND FRI NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT AT 7 SECONDS AND W 2 FT AT
3 SECONDS.
SAT AND SAT NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 4 FT. SHOWERS LIKELY.
SUN
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT.
SUN NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 3 FT. SHOWERS LIKELY.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ230-061800-
BOSTON HARBOR-
103 AM EDT WED MAY 6 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING
REST OF TONIGHT
S WINDS 20 TO 25 KT. WAVES AROUND 2 FT.
WED
S WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. WAVES AROUND
2 FT. SHOWERS LIKELY IN THE AFTERNOON.
WED NIGHT
S WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT, BECOMING
W 10 TO 15 KT AFTER MIDNIGHT. WAVES AROUND 2 FT. PATCHY FOG.
SHOWERS LIKELY. VSBY 1 TO 3 NM.
THU
W WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS.
THU NIGHT THROUGH FRI NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP
TO 20 KT. WAVES AROUND 2 FT.
SAT AND SAT NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
WAVES AROUND 2 FT. A CHANCE OF SHOWERS.
SUN
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. WAVES AROUND
2 FT.
SUN NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. WAVES
AROUND 2 FT. SHOWERS LIKELY.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ236-061800-
NARRAGANSETT BAY-
103 AM EDT WED MAY 6 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING
REST OF TONIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT.
WAVES 3 TO 5 FT.
WED
S WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. WAVES 3 TO
4 FT. PATCHY FOG IN THE AFTERNOON. SHOWERS LIKELY IN THE
AFTERNOON WITH VSBY 1 TO 3 NM.
WED NIGHT
SW WINDS 15 TO 20 KT, BECOMING W 10 TO 15 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. WAVES 2 TO 4 FT. PATCHY FOG. SHOWERS
LIKELY. VSBY 1 NM OR LESS, INCREASING TO 1 TO 3 NM AFTER
MIDNIGHT.
THU
NW WINDS 5 TO 10 KT, BECOMING W IN THE AFTERNOON. WAVES
2 TO 3 FT. A CHANCE OF SHOWERS IN THE MORNING.
THU NIGHT
NW WINDS 5 TO 10 KT. WAVES AROUND 2 FT.
FRI AND FRI NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
WAVES 2 TO 3 FT.
SAT AND SAT NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
WAVES 2 TO 3 FT. A CHANCE OF SHOWERS.
SUN
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. WAVES AROUND
2 FT.
SUN NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. WAVES
AROUND 2 FT. SHOWERS LIKELY.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ280-061800-
OCEAN WATERS FROM THE MERRIMACK RIVER TO PLYMOUTH FROM 40 TO
60 NM-
103 AM EDT WED MAY 6 2026
REST OF TONIGHT
S WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT.
SEAS 7 TO 9 FT. WAVE DETAIL: SW 8 FT AT 7 SECONDS AND E 1 FOOT AT
10 SECONDS. PATCHY FOG. VSBY 1 TO 3 NM.
WED
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS 6 TO
8 FT. WAVE DETAIL: SW 7 FT AT 7 SECONDS AND E 1 FOOT AT
10 SECONDS. PATCHY FOG IN THE AFTERNOON WITH VSBY 1 NM OR LESS.
WED NIGHT
S WINDS 20 TO 25 KT, BECOMING SW 15 TO 20 KT AFTER
MIDNIGHT. GUSTS UP TO 30 KT. SEAS 5 TO 7 FT. WAVE DETAIL: SW 6 FT
AT 6 SECONDS AND E 1 FOOT AT 10 SECONDS. PATCHY FOG. SHOWERS
LIKELY. VSBY 1 NM OR LESS.
THU
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING W
5 TO 10 KT IN THE AFTERNOON. SEAS 3 TO 5 FT. WAVE DETAIL: SW 5 FT
AT 6 SECONDS AND E 1 FOOT AT 10 SECONDS. A CHANCE OF SHOWERS IN
THE MORNING.
THU NIGHT
SW WINDS 5 TO 10 KT, BECOMING NW AFTER MIDNIGHT.
SEAS 3 TO 4 FT. WAVE DETAIL: S 3 FT AT 7 SECONDS AND W 2 FT AT
3 SECONDS.
FRI AND FRI NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 3 TO 4 FT. WAVE DETAIL: SE 3 FT AT 9 SECONDS AND W 2 FT AT
4 SECONDS.
SAT AND SAT NIGHT
S WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 3 TO 5 FT. A CHANCE OF SHOWERS.
SUN
S WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS AROUND
4 FT.
SUN NIGHT
S WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
AROUND 4 FT. SHOWERS LIKELY.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ281-061800-
OCEAN WATERS FROM PROVINCETOWN TO NANTUCKET FROM 20 TO 60 NM-
103 AM EDT WED MAY 6 2026
REST OF TONIGHT
S WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT.
SEAS 6 TO 8 FT. WAVE DETAIL: SW 8 FT AT 6 SECONDS AND E 1 FOOT AT
10 SECONDS. PATCHY FOG. VSBY 1 TO 3 NM.
WED
S WINDS AROUND 20 KT WITH GUSTS UP TO 30 KT. SEAS 6 TO
7 FT. WAVE DETAIL: SW 7 FT AT 6 SECONDS AND E 1 FOOT AT
10 SECONDS. PATCHY FOG. VSBY 1 NM OR LESS IN THE AFTERNOON.
WED NIGHT
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT. SEAS
6 TO 7 FT. WAVE DETAIL: SW 7 FT AT 6 SECONDS AND E 1 FOOT AT
10 SECONDS. PATCHY FOG. SHOWERS. VSBY 1 NM OR LESS.
THU
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING NW
5 TO 10 KT IN THE AFTERNOON. SEAS 5 TO 7 FT. WAVE DETAIL: SW 7 FT
AT 6 SECONDS AND E 1 FOOT AT 10 SECONDS. PATCHY FOG. SHOWERS
LIKELY, MAINLY IN THE MORNING WITH VSBY 1 NM OR LESS.
THU NIGHT THROUGH FRI NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP
TO 20 KT. SEAS 4 TO 5 FT. WAVE DETAIL: S 5 FT AT 7 SECONDS AND SE
3 FT AT 9 SECONDS.
SAT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 4 TO
5 FT. WAVE DETAIL: S 4 FT AT 7 SECONDS AND E 2 FT AT 9 SECONDS. A
CHANCE OF SHOWERS.
SAT NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
4 TO 5 FT. SHOWERS LIKELY.
SUN
S WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO
5 FT.
SUN NIGHT
S WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
AROUND 4 FT. A CHANCE OF SHOWERS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ282-061800-
OCEAN WATERS FROM MARTHAS VINEYARD TO NANTUCKET FROM 25 TO 60 NM-
103 AM EDT WED MAY 6 2026
REST OF TONIGHT
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT.
SEAS 7 TO 8 FT. WAVE DETAIL: SW 8 FT AT 6 SECONDS AND E 1 FOOT AT
10 SECONDS. PATCHY FOG. VSBY 1 TO 3 NM.
WED
S WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS 6 TO
7 FT. WAVE DETAIL: SW 7 FT AT 6 SECONDS AND E 1 FOOT AT
10 SECONDS. PATCHY FOG IN THE AFTERNOON WITH VSBY 1 NM OR LESS.
WED NIGHT
S WINDS 20 TO 25 KT, DIMINISHING TO 15 TO 20 KT
AFTER MIDNIGHT. GUSTS UP TO 30 KT. SEAS 6 TO 8 FT. WAVE DETAIL:
SW 8 FT AT 7 SECONDS AND E 1 FOOT AT 10 SECONDS. PATCHY FOG.
SHOWERS LIKELY. VSBY 1 NM OR LESS.
THU
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING NW
5 TO 10 KT IN THE AFTERNOON. SEAS 5 TO 7 FT. WAVE DETAIL: SW 7 FT
AT 8 SECONDS AND W 1 FOOT AT 4 SECONDS. PATCHY FOG. SHOWERS
LIKELY, MAINLY IN THE MORNING WITH VSBY 1 NM OR LESS.
THU NIGHT THROUGH FRI NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP
TO 20 KT. SEAS 4 TO 5 FT. WAVE DETAIL: S 5 FT AT 7 SECONDS AND NW
3 FT AT 5 SECONDS.
SAT AND SAT NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 4 TO 5 FT. WAVE DETAIL: SW 5 FT AT 6 SECONDS AND E 2 FT AT
9 SECONDS. A CHANCE OF SHOWERS.
SUN
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 4 TO
5 FT.
SUN NIGHT
S WINDS AROUND 15 KT WITH GUSTS UP TO 20 KT. SEAS
AROUND 4 FT. A CHANCE OF SHOWERS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ283-061800-
OCEAN WATERS FROM MONTAUK NY TO MARTHAS VINEYARD FROM 25 TO 60 NM-
103 AM EDT WED MAY 6 2026
REST OF TONIGHT
S WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT.
SEAS 7 TO 8 FT. WAVE DETAIL: SW 8 FT AT 8 SECONDS AND W 1 FOOT AT
7 SECONDS.
WED
S WINDS AROUND 20 KT WITH GUSTS UP TO 30 KT. SEAS 7 TO
8 FT. WAVE DETAIL: SW 8 FT AT 8 SECONDS AND W 1 FOOT AT
8 SECONDS. PATCHY FOG IN THE AFTERNOON WITH VSBY 1 NM OR LESS.
WED NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT. SEAS
6 TO 8 FT. WAVE DETAIL: S 8 FT AT 7 SECONDS AND W 1 FOOT AT
8 SECONDS. PATCHY FOG. SHOWERS LIKELY. VSBY 1 NM OR LESS.
THU
W WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE MORNING.
SEAS 5 TO 7 FT, SUBSIDING TO 4 TO 5 FT IN THE AFTERNOON. WAVE
DETAIL: SW 6 FT AT 7 SECONDS AND E 1 FOOT AT 10 SECONDS, BECOMING
SW 5 FT AT 7 SECONDS AND E 1 FOOT AT 9 SECONDS. PATCHY FOG.
SHOWERS LIKELY, MAINLY IN THE MORNING WITH VSBY 1 TO 3 NM.
THU NIGHT
W WINDS 10 TO 15 KT. SEAS AROUND 4 FT. WAVE DETAIL:
S 4 FT AT 7 SECONDS AND NW 2 FT AT 4 SECONDS.
FRI AND FRI NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 4 TO 5 FT. WAVE DETAIL: NW 3 FT AT 4 SECONDS AND S 3 FT AT
7 SECONDS.
SAT AND SAT NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT.
SEAS 4 TO 6 FT. A CHANCE OF SHOWERS.
SUN
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 4 TO
5 FT.
SUN NIGHT
S WINDS 15 TO 20 KT. SEAS AROUND 4 FT. A CHANCE OF
SHOWERS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
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